FORM THREE GEOGRAPHY NOTES

Effects of soil erosion on human activities

The following are effects of soil erosion to human activities Soil erosion may destroy structures for example buildings, bridges, roads as it weakens their foundation erodes alluvial deposits on the river beds making the river channel shallower resulting in frequent flooding sand eroded from steep slopes is deposited on the river beds and can be …

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4 principles of prismatic compass surveying

Prismatic compass surveying is the method of surveying in which the direction of surveying lines and angular measurements are determined with a magnetic compass and the length of surveying lines are measured with a tape or chain. The following are principles of prismatic compass surveying Make sure that there is no magnetic materials to avoid …

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4 Disadvantages of using prismatic compass surveying

Prismatic compass surveying is the method of surveying in which the direction of surveying lines and angular measurements are determined with a magnetic compass and the length of surveying lines are measured with a tape or chain. The following are disadvantages/demerits of using prismatic compass surveying can not be conducted in areas known to have …

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